Question

Entity type, which do not have identifier (or key attributes) of their own are, called:

• A. Weak entity type
• B. Strong entity type
• C. Good entity type
• D. None of the above

Answer 1

The correct option is A Weak entity type

Entities types, which do not have identifier (or key attributes) of their own are, called weak entity types. Such entity types are identified by related to specific entities from another entity type in combination with some of their attribute value.